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 王天杨
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import { invariant } from '@react-dnd/invariant'
import type {
ConnectDragPreview,
ConnectDragSource,
} from '../../types/index.js'
import type { DragSourceHookSpec, FactoryOrInstance } from '../types.js'
import { useCollectedProps } from '../useCollectedProps.js'
import { useOptionalFactory } from '../useOptionalFactory.js'
import { useConnectDragPreview, useConnectDragSource } from './connectors.js'
import { useDragSourceConnector } from './useDragSourceConnector.js'
import { useDragSourceMonitor } from './useDragSourceMonitor.js'
import { useRegisteredDragSource } from './useRegisteredDragSource.js'
/**
* useDragSource hook
* @param sourceSpec The drag source specification (object or function, function preferred)
* @param deps The memoization deps array to use when evaluating spec changes
*/
export function useDrag<
DragObject = unknown,
DropResult = unknown,
CollectedProps = unknown,
>(
specArg: FactoryOrInstance<
DragSourceHookSpec<DragObject, DropResult, CollectedProps>
>,
deps?: unknown[],
): [CollectedProps, ConnectDragSource, ConnectDragPreview] {
const spec = useOptionalFactory(specArg, deps)
invariant(
!(spec as any).begin,
`useDrag::spec.begin was deprecated in v14. Replace spec.begin() with spec.item(). (see more here - https://react-dnd.github.io/react-dnd/docs/api/use-drag)`,
)
const monitor = useDragSourceMonitor<DragObject, DropResult>()
const connector = useDragSourceConnector(spec.options, spec.previewOptions)
useRegisteredDragSource(spec, monitor, connector)
return [
useCollectedProps(spec.collect, monitor, connector),
useConnectDragSource(connector),
useConnectDragPreview(connector),
]
}
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